sortie Freshicaler Fishes from Lower Congo. 17o 



margins, not extending quite as t'ai- back as occipital nuclial 

 process. Dorsal I 6. Dorsal spine a little more than ^ the 

 length of the head, striated in front and on the sides, minutely 

 denticulafed behind. Base of adipose dorsal no^ quite twice 

 as long as its distance from rayed dorsal, the base of which is 

 \^ the distance between both dorsals. Anal III 8. Pectoral 

 spine longer than dorsal spine, serrated behind. Ventrals 

 neaily reaching anal. Caudal deeply forkeil (both lobes are 

 tiuneated, and a])pear to have been bitten off during" life and 

 healed). Caudal peduncle (tVom adipose fin) a little longer 

 than deep. Colour in Sj»irit brownisli olive, with numerous 

 roundish dark spots on head and body as well as on tins. The 

 spots on the sides of the body are about 10 mm. in diameter, 

 those on the head and the fins onlv about half that size or 



Phractura hovei^ Perugia. 



Native name " Ntiki-ntiki.'^ 

 Locality. Lower Coii«[o. 

 i wo ^ptcimeiis. 



BelonOijlanis iiudipectus, sp. n. 



Native name "• Nliki-ntiki." 



Locality. Lower Congo. 



One specimen, 110 mm. in total length (s. c). 



Depth of body about 13| times in total length, length of 

 head 8jt times. Head much depressed, 11 times as long as 

 broad, rugose above ; the A-shaped ridge on the snout not so 

 much pronounced as in B. tenuis, and its branches divide 

 lurther backwards than in the species mentioned [cfr. fig.), 

 about on the level v/ith the posterior nostrils. Occipital 

 jirocess trilobate, but the lateral branches n)ore slender and 

 more diverging from the mesial line than in B. tenuis 

 {cfr. fig.). {Snout pointed, a little less than | length of head, 

 strongly projecting beyond mouth. Eye 7^ times in length 

 of head, 2-^ limes in inteiorljital width. No rounded rugose 

 process on coracoid below base of pectoral. First dorsal i 7, 

 first ray longer than head. Anal 8. Pectoral a little longer 

 than head, not reaching ventral; the latter widely separated 

 from anal. Caudal about half the length of head, rather 

 deeply cleft. Caudal peduncle very thin and depressed, 

 I total length. The azygous plate in front of the dorsal fin 

 js broader behind than in front [cfr. Hg.), unlike the condition 

 in B. tenuis, BIgr., in which it appears to be broader in front 

 than behind. From the origin of the dorsal '22 pairs of dorsal 



